High structural stability junction box and panel light having the same

Abstract

A high structural stability junction box includes a first side wall, a second side wall, a third side wall and a top surface. The first side wall has a first locking edge, a first inclined edge, and a first fixing edge. The first locking edge is connected to the first fixing edge via the first inclined edge. The second side wall is opposite to the first side wall, and has a second locking edge, a second inclined edge, and a second fixing edge. The second locking edge is connected to the second fixing edge via the second inclined edge. The third side wall is opposite to the fourth side wall. The top surface has four side edges. The first side wall, the second side wall, the third side wall, and the fourth side wall extend from the four side edges, respectively.

What is claimed is: 
     
       1. A high structural stability junction box applicable to a panel light, comprising:
 a first side wall having a first locking edge having a first locking portion, a first inclined edge, and a first fixing edge having a first fixing wing, wherein the first locking edge is connected to the first fixing edge via the first inclined edge; 
 a second side wall opposite to the first side wall, and having a second locking edge having a second locking portion, a second inclined edge, and a second fixing edge having a second fixing wing, wherein the second locking edge is connected to the second fixing edge via the second inclined edge; 
 a third side wall; 
 a fourth side wall opposite to the third side wall; and 
 a top surface having four side edges, wherein the first side wall, the second side wall, the third side wall, and the fourth side wall extend from the four side edges, respectively; 
 wherein the panel light comprises a backboard having a step structure, and the step structure comprises a top plane, a plurality of inclined planes, and an outer ring portion, wherein the first locking edge, the first inclined edge, and the first fixing edge are in contact with the outer ring portion, one of the inclined planes, and the top plane, respectively, wherein the first locking portion is fixed to the outer ring portion, and the first fixing edge is fixed to the top plane via the first fixing wing, wherein the second locking edge, the second inclined edge, and the second fixing edge are in contact with the outer ring portion, one of the inclined planes, and the top plane, respectively, wherein the second locking portion is fixed to the outer ring portion, and the second fixing edge is fixed to the top plane via the second fixing wing. 
 
     
     
       2. The high structural stability junction box as claimed in  claim 1 , wherein the first locking portion is a locking sheet, and there is an included angle between the locking sheet and a horizontal plane, wherein the horizontal plane is parallel to the top surface. 
     
     
       3. The high structural stability junction box as claimed in  claim 1 , wherein the first side wall has a first knock-out hole, the second side wall has a second knock-out hole, the third side wall has a third knock-out hole, and the top surface has a top knock-out hole. 
     
     
       4. A panel light having a high structural stability junction box, comprising:
 a backboard having an opening and a step structure, wherein the opening is disposed on one side of the backboard, and the step structure is disposed on another side of the backboard, and the step structure comprises a top plane, a plurality of inclined planes, and an outer ring portion; 
 a light source board disposed inside the backboard; 
 a light cover disposed on the backboard and covering the opening; and 
 a junction box disposed on the step structure, and having a first side wall, a second side wall opposite to the first side wall, a third side wall, a fourth side wall opposite to the third side wall, and a top surface, wherein a shape of the first side wall and a shape of the second side wall are corresponding to a shape of the step structure, wherein the first side wall has a first locking edge having a first locking portion, a first inclined edge, and a first fixing edge having a first fixing wing, and the first locking edge is connected to the first fixing edge via the first inclined edge, wherein the second side wall has a second locking edge having a second locking portion, a second inclined edge, and a second fixing edge having a second fixing wing, and the second locking edge is connected to the second fixing edge via the second inclined edge, wherein the top surface has four side edges, and the first side wall, the second side wall, the third side wall, and the fourth side wall extend from the four side edges, respectively; 
 wherein the first locking edge, the first inclined edge, and the first fixing edge are in contact with the outer ring portion, one of the inclined planes, and the top plane, respectively, wherein the first locking portion is fixed to the outer ring portion, and the first fixing edge is fixed to the top plane via the first fixing wing, wherein the second locking edge, the second inclined edge, and the second fixing edge are in contact with the outer ring portion, one of the inclined planes, and the top plane, respectively, wherein the second locking portion is fixed to the outer ring portion, and the second fixing edge is fixed to the top plane via the second fixing wing. 
 
     
     
       5. The panel light having a high structural stability junction box as claimed in  claim 4 , wherein the first locking portion is a locking sheet, and there is an included angle between the locking sheet and a horizontal plane, wherein the horizontal plane is parallel to the top surface. 
     
     
       6. The panel light having a high structural stability junction box as claimed in  claim 4 , wherein the first side wall has a first knock-out hole, the second side wall has a second knock-out hole, the third side wall has a third knock-out hole, and the top surface has a top knock-out hole.